Coke-drawing machine



PATENTED JAN. 5, 1904.

J. A. HEBB.

COKE DRAWING MACHINE.

APPLICATION FILED AUG. 21, 1902.

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NO MODEL.

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No. 749,058. PATENTED JAN. 5, 1904.

J. A. HEBB. COKE DRAWING MACHINE.

APPLICATION FILED AUG. 21, 1902.

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No. 749,058 PATENTED JAN. 5, 1904."

J. A. HEBB.

COKE DRAWING MACHINE.

APPLICATION FILED AUG. 21, 1 905 3 SHEETS-SHEET 3.

UNITED STATES Patented January 5, 1904.

PATENT OFFICE.

JOHN A. HEBB, OF UNION TOWN, PENNSYLVANIA, ASSIGNOR TO THE HFBB COKE DRAWER COMPANY OF UNIONTOWN, PENNSYLVANIA.

COKE-DRAWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 749,058, dated January 5, 1904. I Application filed August 21, 1902. Serial No. 120,559. (No model.)

To aZZ whom, it may concern:

Be it known that I, JOHN A. HEBB, a citizen of the United States, residing at Uniontown, in the county of Fayette and State of Pennsylvania, haveinvented certain new and useful Improvements in Coke-Drawing Ma! chines, of which the following is a specification, reference being had therein to the accompanying drawings, forming part of this specification, in which- Figure 1 is a plan view of a coke-drawing machine in position in front of an oven-door, portions of the conveying mechanism and beam being broken away. Fig. 2 is a per- I5 spective view of the inner end of the beam and a portion of the raising and lowering mechanism. Fig. 3 is a vertical longitudinal sectional view on the line'III III of Fig. 1. Fig. 4 is a vertical cross-sectional view on the line IV IV of Fig. 3. ,Fig. 5 is a similar view at right angles to Fig. 3, indicated by the line V V of Fig. 1. Fig. 6 is a detail view of the vertical clutch mechanism of Fig. 4 and its operating-lever at right angles to said figure; My invention relates to apparatus for drawing coke from the oven wherein a traveling structure is provided with a reciprocating beam having a rake-head or scraper adapted to be extended into and withdrawn from the oven to empty the contents therefrom and is similar in construction to the subject-matter of my application filed August 14, 1902, Serial No. 119,617. I

The present application refers more particularly to the means of raisingand lowering the operative end of the beam and scraper and for locating it at any desired position or angle so as to vary the height of the scraper during its inward or outward travel or at other times.

Referring now to the drawings, A represents the framework of a portable carriage carrying the turn-table B, upon which are mounted the various manipulative portions of the machine. Mounted in suitable bean. ings on themain frame is a main shaft 4, driven at one end by a suitable prime mover, as a steam-engine or an electric moter. Gentrally mounted in step-box 6 is a vertical shaft 7 in driving engagement with the shaft 4 by bevel-gears 9 l0,-by which-shaft 7is'conti'nuously driven. The beam-supporting and beam-manipulating (longitudinally) framework and mechanism is mounted on the two main standards 22 22 at each side of the central shaft 7, which standards are secured to the upper side of the turn-table and are provided at their upper portions with pillowblocks or bearings 23, in which is mounted the cross-shaft 24, provided at its middle portion centrally above the center of the machine with driving-pinions 25 in driving eugagement with racks 26, secured to beam 27, the body portion of which rests upon a roller 28, journaled on shaft 24, by which the weight of the beam is carried and the teeth relieved from the strain of gravity.

' On each side of the beam, freely journaled on shaft 24, are the conical friction-drums 36, provided on their inner portion with periph- 7o eral bevel-teeth 37, the teeth on both of such drums being in constant engagement with a driving bevel gear-wheel 38, secured to the upper end of shaft 7, by which both frictiondrums are constantly driven in opposite directions. Beyond the friction-drums, at each side, is a surrounding friction-sleeve 40, each of which is provided with a hub portion in driving engagement with the shaft 24 by spline or key 41, .so that when either of such sleeves is brought in to frictional engagement with the drum by shifting it upon the shaft it will transmit movement to the shaft 24 in one direction or the other according to which drum is utilized, and thereby through pinions 25 and racks 26 will impart forward or backward movement to the beam. The shifting operation is secured through lever 42,pivoted at 43 andconnected at 44 with a shifting bar 45, mounted in suitable hearings on uprights 9o 22 and provided with forks 46, engaging collars or flanges on the hubs of sleeves 40.

While I have-secured good results with the foregoing-described mechanism by which the beam and scraper are operated inwardly or outwardly, I do not desire to be limited thereto, but to include any other suitableor preferred construction by which the beam may be introduced into the oven and withdrawn therefrom.

The forward end of' the beam is provided with a rake or scraper head 31, made of sheet metal or forked or toothed in the manner of a rake, as may be preferred, and rigidly secured to the inner end of the beam in any desired manner. The rigidly-connected scraper is adapted to be used with good results where the oven-door is sufficiently high to permit of its entrance without folding and also to be introduced or worked down into the coke when its quality is sufliciently loose to permit. The plate or tines of the scraper may have sufficient elasticity to permit of some deflection to assist the operation of entering the crevices of the coke, while such bending as may be imparted to the beam in the operation of lowering the scraper will further assist its movement.

The inner end of the beam is raised and depressed by independent supporting mechanism consisting of lower and upper rollers or sliding bearings 66, mounted in supporting-framework 67, adapted to be raised and lowered and also to be stopped at any desired position vertically, so as to provide a bearing for the beam at any angle at which it may be desired to operate it inwardly or outwardly. The framework 67 and its bearing elements 65 66, which are adapted to positively engage the under and upper sides of the beam, is raised and lowered by any suitable mechanism, and I have shown a screw 61, engaging a threaded nut 62, forming a part of framework 67, shaft 61 being suitably mounted in a step-box and provided with a bevel or other suitable gear-wheel 60, into which meshes a similar wheel 59, mounted on the outer end of shaft 47, located in suitable bearings on the turn-table B.

The inner end of shaft 47 is provided with a bevel-gear 48, in mesh with the upper and lower driving-bevels 4:9 and 50, loosely mounted on shaft 7 and provided with clutches 51, with which is adapted to engage a movable clutch 52, in key or spline engagement with the constantly-running shaft 7. Clutch 52 engages with the clutch of bevel 49 or 50 and is raised and lowered by lever 53 engaging the groove inthe movable clutch,the lever being secured to shaft 54, mounted in bearings in the framework, provided with an operatinghand-lever 55, extending upwardly and within easy range of the operator. By this mechanism the inner end of the beam is capable of being raised or depressed and positive upward or downward movement may be exerted upon the beam, and consequently to the scraper, so as to raise it above or force it downwardly into the coke. The entrance of the scraper into the crevices of the coke during such downward pressure is facilitated by quickly shifting lever 42, so as to momentarily throw the outwardly-operating clutch 40 into contact with the drum 36, imparting to the scraper a slight outward pull, and consequently a concussive action forwardly against the coke, or by quickly shifting both clutches into and out of contact, thereby imparting short rapid reciprocations to the beam in opposite directions, thus widening the entering cavity for the scraper and facilitating its downward travel into the coke until it becomes firmly engaged, whereupon the operator throws that one of the clutches 40 into contact which is adapted to impart outward travel to the beam, when the body of coke in front of the scraper will be drawn forwardly and out of the oven-door.

While the reciprocation of the beam and scraper while in engagement with the coke is necessarily very limited by reason of the rigid construction of the scraper, especially with very hard coke, nevertheless the skilled operator is enabled to greatly assist the insertion of the scraper into the coke by the shifting of the clutches as I have described, and inasmuch as the apparatus is well adapted to operate in not only hard but soft and loose coke, as well as in loose coal or gravel, or, in fact, any. other material which may be removed by the operation of a hoe, it will be understood that by proper manipulation of lever 42 a series of short pulls or jerks may be imparted to the scraper similar to the movements of a hand-operating device, so that practical results may readily be secured with a head rigidly connected to the beam by the skilled operator.

The operation of the apparatus will be readily understood from the foregoing description, the operation of extending the beam into or withdrawing it from the oven being accomplished while the scraper is being raised or lowered or being held at any desired position by merely stopping the forward or backward rotation of screw 61, the operator holding lever 42 in the left hand while operating the clutch-sleeves 40 and lever 55 in the right hand while operating clutch 52.

While good results may be secured from the construction which I have shown for raising and lowering the beam and for holding it stationary as to its elevation or depression, it will be understood that other mechanism may be substituted for such purpose and operation, and I do not, therefore, desire to be limited specifically to the construction shown and described, but to includejwithin the scope of the following claims any mechanism which is adapted to raise and lower the beam or its inner end or to hold it at any desired position during its inward or outward travel, which travel may also be imparted to it by other mechanism than that shown and described, and all such changes or variations are to be considered as within the province of the skilled mechanic and the scope of the following claims.

Having described my invention, what I claim is 1. In a coke-drawing machine, the combination with a longitudinally-movable beam provided with a scraper, of screw mechanism for raising and depressing the beam, substantially as set forth.

2. In a coke-drawing machine, the combination with a longitudinally-movable beam provided with a scraper, of screw mechanism for raising and depressing the inner end of the beam, substantially as set forth.

3. In a coke-drawing machine, the combination with a longitudinally-movable beam provided with a scraper, of means for providing bearings for the beam at varying heights, and screw mechanism for actuating said means, substantially as set forth.

4. In a coke-drawing machine, the combination with a longitudinally-movable beam provided with a scraper, of vertically-adjustable bearings adapted to engagethe beam from above and underneath, and screw mechanism for actuating said bearings, substantially as set forth.

5. In a coke-drawing machine, the combination with a longitudinally-movable beam provided with a scraper, of vertically-adj ustable bearings adapted to engage the beam from above and underneath,with screw mechanism for holding said bearings at varying heights, substantially as set forth.

6. In a coke-drawingmachine, the combination with a longitudinally-movable beam provided with a scraper, of a vertically-adjustable framework provided with rollers adapted to engage the beam from above and underneath, and screw mechanism for actuating said framework, substantially as set forth.

7. In a coke-drawing machine, the combination with a longitudinally-movable. beam provided with a scraper, of a vertically-adjustable framework provided with rollers adapted to engage the beam from above and underneath, with screw mechanism for raising and lowering said framework and rollers, substantially as set forth.

8. In a coke-drawing machine, the combination with a longitudinally-movable beam.

provided with a scraper, of a vertically-adjustable framework provided with rollers adapted to engage the beam from above and underneath, with screw mechanism for raising and lowering said framework and rollers, and for holding them at varying heights, substantially as set forth.

Intestimony whereof I afiEix my signature in presence of two witnesses.

JOHN A. HEBB.

Witnesses: CHAS. W. FEIGEL,

O. M. CLARKE. 

